Best Steam Includes Source SDK Games
| Name | Release Date | Current Players | All-Time Peak | Rating | |
|---|---|---|---|---|---|
|
Garry's Mod | 29 Nov, 2006 | 28 099 | 73 863 | 96.10 |
|
Left 4 Dead 2 | 16 Nov, 2009 | 25 184 | 162 399 | 96.78 |
|
Counter-Strike: Source | 1 Nov, 2004 | 10 080 | 100 056 | 95.06 |
|
Half-Life 2 | 16 Nov, 2004 | 2 391 | 64 085 | 96.46 |
|
Black Mesa | 6 Mar, 2020 | 1 640 | 7 158 | 93.89 |
|
Left 4 Dead | 17 Nov, 2008 | 1 188 | 30 616 | 94.65 |
|
Portal | 10 Oct, 2007 | 1 021 | 20 672 | 97.20 |
|
No More Room in Hell | 31 Oct, 2013 | 430 | 10 922 | 88.54 |
|
Day of Defeat: Source | 12 Jul, 2010 | 338 | 7 507 | 89.64 |
|
Half-Life 2: Deathmatch | 1 Nov, 2004 | 260 | 2 702 | 88.41 |
|
Alien Swarm: Reactive Drop | 20 Apr, 2017 | 194 | 9 335 | 92.72 |
|
Selaco | 30 May, 2024 | 184 | 1 528 | 88.56 |
|
Entropy : Zero 2 | 20 Aug, 2022 | 130 | 3 751 | |
|
Astro Colony | 7 Nov, 2022 | 126 | 2 751 | 79.03 |
|
Synergy | 3 Oct, 2008 | 108 | 2 940 | 88.30 |
|
Fistful of Frags | 9 May, 2014 | 69 | 3 537 | 89.61 |
|
Pool Nation FX Lite | 7 Dec, 2015 | 56 | 1 271 | 70.38 |
|
Treason | 31 Jan, 2023 | 55 | 226 | |
|
Pirates, Vikings, and Knights II | 12 Feb, 2010 | 54 | 878 | 84.99 |
|
Menace from the Deep | 2024 | 52 | 1 653 | 81.15 |